list-delivery-streams
AI agents call list-delivery-streams to retrieve information from Amazon MQ MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
List operations are fundamentally retrieval-only with no side effects. While the description is empty and provides no additional detail, the tool name itself clearly indicates a querying operation that retrieves information about existing delivery streams in Amazon MQ. No data is created, modified, deleted, or executed.
From the tool's definition Tool name 'list-delivery-streams' indicates a listing operation, which retrieves and enumerates delivery streams without modification. The 'list-' prefix is a standard convention for read-only queries.
Attacks that exploit this kind of access
list-delivery-streams. It is categorised as a Read tool in the Amazon MQ MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Amazon MQ MCP Server MCP server in PolicyLayer and add a rule for list-delivery-streams: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Amazon MQ MCP Server. Nothing to install.
list-delivery-streams is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list-delivery-streams rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for list-delivery-streams. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
list-delivery-streams is provided by the Amazon MQ MCP Server MCP server (awslabs.amazon-mq-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.